Slimes-filter apparatus.



1 W Am m v KPA RPM M RT... EM i FW .TLH EPM S n S 8 F y 7 8 m N PATENTED JAN. 28, 1908.

- To all whom it my concern:

. men- T TES PATENT. em

EDWIN M. CLARK, OF Los ANGELES; CALIFORNIA, ASSIGNOR 'ro EDWIN M. CLARK SLIME FILTER COMPANY, DE LOS ANGELES, CALIFORNIA, A CORPORATION or.

SOUTH DAKOTA.

, Ems-FILTER APPARATUS.

Patented Jan. 2a, 1908.

fipplieation filed May 6,1907. serial No. 872.280.

Beitknown that I, Enwm CnARn, a

citizenof the Unitedstates, residing at 'Los A tus,-. and has. fior'itsobjzect toeffectua following-is a. specification.

scribed.

Angeles, in the county of Los Angeles and State. of (lalifomia, have invented a new and useful Slimes-Filter Apparatus, of which the invention relates. to. filtering apparae the precessoffiltering-.slimeslor pulp in acont-inuous manner,

Theaccom anying drawings illustrate the invention, an referring thereto 1 is a vertical section taken longitndinally through the machine. Fig. 2 1s a i vertical. section, on reduced scale, on line d-c" Fig.1. Fig.3 isjan end elevation, on

reduced scale, of. the machine. sectional'view ofthe edge of the belt.

The frame com'gnrises beams-1 which suppertruprightSiZ w ch in turnsupport horimetal 3,, the latter having pillow blocks. 4: in which isv mounted a stationary a lower hollow shaft. 5.. Atank 6 having portion curved concentrically with the shaft 5 is-sup orted-by the. framework, and the p- I to e filtered is introduced-to the tank 6.. ougha pipe '2.

M tedon the hollow shaft is a'wheeltheof' which consists "ef hollow segmental sactionsfi, the. face of each section havinglarge orifices 9. and thesections beingfastened together by bolts: -10. Each section near its: edge, has a groove 11" whereby when the sections are assembled an groove is provided around the entire wheel near each' edge thereof. Each section 8-. thus formsa chamber 12 and each chamber 12 communicates with a. hollow spoke L3. The hollow spokes i3 extend through an outer barrel 14, as shown inFig-n2, and the several sect1ons'8 connected with the barrel 14 by stays .15.

' An outer. 16 is. arranged justinside.

the barrel 141, and an inner'btshingljis arranged inside. the bushing-16, the bushing 17. fo avalve; The-bushing 16 is provided with onficeswhich register with the openings in the hollow spokes 13., and the shaft 5 is provided in the present case w1th three ports 18, as clearly shown in Fig. 1. The valve 17 is provided with ports 19, 20 and Hand is so set that a certain number of hollow spokes will be hereinafter de- Fig.4 is a wheel are shut o from communication the hollow shaft. A stufl'ing box flange 22 is.

when .in certain fposition inthe cycle of the I arranged at each end of. the barrel 14 between the barrel 14 and bushing 17 with acking 1 between each flange 22 and the bus ing 16.

. Collars 23 on shaft 5 abut agpinst. the stuffing box flanges 22 andholdt e 'wheela ainst. lateral movement on the shaft. A re uced flange 24 is attached to one side of the wheel one .endof bars 28 as shown in 1. Thejbars 28 also su port idle rollers 30 and 31 while an idle rol er 32 is supported at the-lower end of slidablehangers 33 which extend down from the beams 3 and are connected at the.

material, for example canvas, passed;

the belt 34 running over the rollers 29, 3.0-,

31 and 32 and being held tau-tby aweighted. lever L which bears u on-bar B. A launder 35 is arranged below t eroll'er- 32: and perfescra .hollow shaft 5 to the rated .wash pipes 36 are arrangedon both.

runs of the belt 34 just above the'roller 32, a

was pipes 36.

v The wheel is. revolved in the direction-of thearrow, Fig. 1, and the tankfi-is kept filled hollow-spokes design 01ffrom communicationwith the hollow shaft 5, while hollowjspokec, the section 8 of trip by a bar B. A ,pervious belt 34 of suit?- i' a e around the wheel over the perforated rim,

1' 3-7 being arrangedbelow one ofjzthe' which 1s completely immersed in the ulp, is-

s htly opened to communication withv the.

ho ow shaft. Spokes d, e,f, g, and h are'allsuction pump K is connected with the hollow shaft 5 andsuction is thus produced in such of the sections 8 as are "in communication in communicationwith the hollow shaft. A j

with the hollow shaft, which suction draws the liquid'through the meshes. of the belt and I through the orifices 9 into the sections 8, thence through the hollow spokes 13- to the plump,'the solids being held by suction to t e belt. The belt is folded overa-t each edge and sewed to form a recess ineach ed e and a rope is run through each recess, an the ropes press the belt down into the grooves against a strip of rubber or felt which is arranged in the bottom,

of each groove 11 in the Wheel, and this prevents any leakage between the edges of the belt and the wheel and compels the suction to act through the meshes of the belt. The idle rollers are also provided with rooves to guide the rope. The recesses in the edge-of the belt are wide so that slight swerving of the belt ,does not unseat the ropes from the grooves -and the belt is held by the ropes against undue lateral travel. If the ropes were tightly bound in the belt the belt would be a t to jerk the ropes out of the grooves as the belt must have some individual lateral play or it will not travel well. The solids which are not drawn through the belt are carried by the belt to the trough 35, wash pipes 36 and scra er 37 removing allsolids om the belt. e action is continuous, the wheel continuingv to revolve in the pulp contained in the tank, and as the belt travels with the wheel the li uid is sucked throu h the wheel .and into the hollow shaft, whi e the solids are carried up out of the tank by the belt. It is im%ortant that the valve be arranged to shut o spokes which communicate with sections not ,full immersed in the liquid or not fully covere by the belt, so that the suction is confined to a definite part of the cycle and the sections which are either fullyimmersed in the liquid and covered with the belt, or

which are partiall immersed in the liquid and fully covered y.the belt. If the valve Was not so arranged and the suction was allowed to act upon sections not fully immersed or not covered by, the belt the suction would merely .draw air through such sections and there would be little or no suction on the immersed or belt covered sections sufficient to draw the liquid through the belt and cause the solids to adhere to the belt.

What I claim is I 1. In a'slimes filter apparatus, a wheel having a perforated rim with grooves near each edge of the rim, a pervious belt traveling over said wheel, the belt having welts in each edge which closely fit the said grooves and prevent leakage between the edge ofthe belt and wheel, the rim of the wheel being formed in hollow sections, a tank containing the liquid to be filtered in which the wheel is immersed, means for applying suction to hollow sections of the rim to draw the liquids through the pervious belt into the hollow sections and cause the solids to adhere to the belt, and means for limiting the suction to sections which are full immersed in the liquid or covered by the elt.

2. In a slimes filter apparatus, a wheel the rim of which comprises segmental hollow sections bolted togetheneach section having aperforated face, a hollow hub hollow spokes connecting the respective sections with suction from the hollow the hollow hub, a stationary hollow shaft on which the whe'elrevolves, a hollow shaft having ports, means for applyingsuction to the ,hollow shaft, a bushing between the hollow shaft and hollow hub, said bushing having ports thus forming a valve adapted to shut oil suction from hollow spokes and rim sections when in certain positions in their cycle of movement, a pervious belt travelin over the wheel, and a tank containing the 'quid to be filtered in which the wheel is immersed.

'3. In a slimes filter apparatus, a wheel, the rim. of which comprises .segmental hollow sections bolted together, each sectionhaving a perforated face, a hollow hub, hollow spokes connecting the respective rim sections with the hollow hub, a stationary hollow shaft on which the wheel revolves, a hollow shaft having ports, means for applying suction to the hollow shaft, a bushing between the hollow shaft and hollow. hub, said bushing having ports thus forming a valve adapted to shut off suction from hollow spokes and rim sections when in certain positions .in their clyplle of movement, a pervious belt trave' g over the wheel, a tank containin the liquid to be filtered in which the w eel is lmmersed,

idle rollers for guidin that part of the belt away fromthe whee, a wash pi e for, re-' moving solids from the belt after it has left the wheel, and a launder for receiving the washed off material.

4. In a slimes filter apparatus, awheel having a perforated rim withgrooves near each edge of the rim, a pervious belt traveling over said wheel, the belt having recesses in each edge, ropes extendingl loosely through the recesses and drawing t e edges .of the belt into tight engagement in the grooves of. the wheel, strips of packing material in the bottom of the grooves against which the'belt is pressed by the ropes for preventing leakage, the rim of the wheel being formed in hollow sections, a tank containingthe liquid to'be filtered in which'the wheel is immersed, means for applying suction to hollow sections of the rim to draw the li uids through the pervious belt into the ho ow sections and cause the solids to adhere to the belt, and means for limiting the suction to sections which are fully immersed in the liquidortcovered by the .belt;.

5. In a slimes filteflapparatus, a wheel having a hollow hubg'ia perforated rim formed 'of hollow sections, hollow s okes connecting; the respective -;.eections wit hollowhu the Y a perviousbelt traveling over the wheel, the wheel-being immersed inthe '1 liquid to be filtered,'means for applying suction to the hollow hub, spokes and sections, valve means for limiting the suction only ,to such hollow, sections as are fully immersed in the li uid .or are covered bythe belt, idle rollersll r portion 1'30 .5 said cross bar for depressing the slidable In presence of 's77,e's1-' i Y I a of the belt not on the wheel, a pair of slidable In testimony whereof, I have hereunto bars supporting one of said rollers, a cross set ,my hand atLos Angeles, California, this barficonnecting the .upperends of the slidable 26th day of'April, 1907; bar, and aweighted lever bearing against EDWIN M. CLARK.

bars to cause the roller carried'by the slid GEORGE'T. HAo rnEr, able bars to hold the belt taut. i I FRANKIE. ALGRQIAM. v 

